Primary o2 & MAF for a 2005 Accord
- Thread starter buster
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Pre-cat/upstream O2 may be a good idea. Being in the hot exhaust flow close to the engine can make them lazy and fouled after a while. The MAF leads a relatively easy life...and...they are expensive.
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Replace O2 sensor and clean MAF sensor. Use qtips , crc makes a cleaner just for that purpose. Go Denso oem for O2 sensor. Rockauto or amazon has good prices. I'm thinking about o2 myself on the Acura since lately I've noticed it takes forever for it to go into closed loop. The rear o2 and cat are already new so that's the only one that's still Oem. My car does not have an MAF sensor. It has air mass sensor. Less accurate and slower :-\ .
Originally Posted By: buster
Maybe I'm just looking for a problem that doesn't exist. I look at it as preventive maintenance.
With 162k miles on the 05 Honda, should I replace the primary o2 and MAF sensors?
Cars runs great.
Do not replace anything, or do anything else. Yet. It will be a waste of money and time.
Your OBD-II is monitoring a whole bunch of things, and it will let you know loud and clear if anything is amiss; that's its job. As a consequence, if anything should go wrong with the oxygen sensors, the Check Engine light will illuminate. Same with the MAF. And you do not replace the MAF, you clean it.
Maybe I'm just looking for a problem that doesn't exist. I look at it as preventive maintenance.
With 162k miles on the 05 Honda, should I replace the primary o2 and MAF sensors?
Cars runs great.
Do not replace anything, or do anything else. Yet. It will be a waste of money and time.
Your OBD-II is monitoring a whole bunch of things, and it will let you know loud and clear if anything is amiss; that's its job. As a consequence, if anything should go wrong with the oxygen sensors, the Check Engine light will illuminate. Same with the MAF. And you do not replace the MAF, you clean it.
Clean the MAF (spray only), buy an Ultragauge (or SG is you want to spend more). I had a lazy o2 sensor that didn't throw any codes, but took MILES to warm up (like 10-15min of driving sometimes) that was quickly found by watching the UG. Car stayed in open loop for way too long. Replaced the front o2 and fixed the laziness.
Originally Posted By: Vikas
do you know if your car has MAF sensor?
'03-'05 Accords with the 4-cylinder had a MAF. Honda moved to MAFs from MAPs almost across-the-board around 2006.
To see if you have a MAF, check for an electrical connector attached to the air filter housing.
do you know if your car has MAF sensor?
'03-'05 Accords with the 4-cylinder had a MAF. Honda moved to MAFs from MAPs almost across-the-board around 2006.
To see if you have a MAF, check for an electrical connector attached to the air filter housing.
NO reason to replace anything.
I'd look for a top quality O2 sensor at a good price- no hurry.
The MAF should be great with cleaning - only use a dedicated MAF cleaner.
The MAF should be great with cleaning - only use a dedicated MAF cleaner.
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